Pipe flushing device



FIG. 1 is a perspective view of a pipe flushing device with the top pointed up showing my new design;

FIG. 2 a perspective view of FIG. 1 with the top pointed down;

FIG. 3 is a top plan view of FIG. 1; and,

FIG. 4 is a bottom plan view of FIG. 1. 

CLAIM The ornamental design for a pipe flushing device, as shown and described. 